10.7.6 Gather_OV_from_DV Procedure

The Gather_OV_from_DV procedure does the communication necessary to set
an Overlapped Vector from a Distributed Vector. No communication is done
if the Overlapped Vector is already up-to-date with the Distributed Vector.

Calling syntax:

OV = DV

or

call Gather (OV, DV)

Input variable:

DV

The Distributed_Vector object to be gathered.

Output variable:

OV

The Overlapped_Vector object, updated to correspond with the
input Distributed_Vector object.